FULL PRODUCT VERSION :
C:\Documents and Settings\flavio.FLAVIO-PC>java -version
java version "1.6.0_06"
Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
Java HotSpot(TM) Client VM (build 10.0-b22, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows xp Service Pack 2

Microsoft Windows XP [versão 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
In the following code -

Document doc;
  
// construtor que seta o arquivo XML
public LeXml( String arquivo ) {
     try{
         DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
         doc = db.parse(arquivo); //here occured IOException only for Strings
     } catch (ParserConfigurationException ex) {
         System.out.println(ex.getMessage()+" 1");
     } catch (org.xml.sax.SAXException ex2){
         System.out.println(ex2.getMessage()+" 2");
     } catch (java.io.IOException ex3){
         System.out.println(ex3.getMessage()+" 3");//this exception ocurred
     }
               
}

if the name of the xml file contains spaces, intantiating a Document object generates a IOException( this does not happen if take away the spaces of the names of the file). if instead of a String, we use an object of type java.io.File, it works as expected.

more informations here:

http://www.guj.com.br/posts/list/97223.java


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Code executes

ACTUAL -
IOException


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
//imports....
public class LeXml {
Document doc;
   
   // construtor que seta o arquivo XML
   public LeXml( String arquivo ) {
        try{
            DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            doc = db.parse(new java.io.File(arquivo)); //aki ta dando merda
        } catch (ParserConfigurationException ex) {
            System.out.println(ex.getMessage()+" 1"); //sei la q erro é esse
        } catch (org.xml.sax.SAXException ex2){
            System.out.println(ex2.getMessage()+" 2"); //esse mto menos
        } catch (java.io.IOException ex3){
            System.out.println(ex3.getMessage()+" 3");
        }
                
   }

...

public static void main(String args[]){
        LeXml l = new LeXml("C:\\a a.xml");
 ...
}

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
doc = db.parse(arquivo);

to

doc = db.parse(new java.io.File(arquivo));